Pith Number

pith:F7GCGUMI

pith:2003:F7GCGUMI54GJKXEULJCU2O3L5B

not attested not anchored not stored refs pending

A Family of Simplified Geometric Distortion Models for Camera Calibration

Kevin L. Moore, Lili Ma, YangQuan Chen

arxiv:cs/0308003 v1 · 2003-08-02 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7GCGUMI54GJKXEULJCU2O3L5B}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:06:49.348187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fcc235188ef0c955c945a454d3b6be86f6d2577307ad860d7156964919ac2aa

Aliases

arxiv: cs/0308003 · arxiv_version: cs/0308003v1 · doi: 10.48550/arxiv.cs/0308003 · pith_short_12: F7GCGUMI54GJ · pith_short_16: F7GCGUMI54GJKXEU · pith_short_8: F7GCGUMI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/F7GCGUMI54GJKXEULJCU2O3L5B \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2fcc235188ef0c955c945a454d3b6be86f6d2577307ad860d7156964919ac2aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8546c345e4b3689c180145a9bd203ddee46deb393fbcca3cad029341d96093e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CV",
    "submitted_at": "2003-08-02T01:39:38Z",
    "title_canon_sha256": "182cee114b67c230ba6d1a639b417eda6ee965bb15964bd30ef83939def264eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0308003",
    "kind": "arxiv",
    "version": 1
  }
}